Taw qhia ntawmKev sim ua kom ua paraffin ciab:
1.Definition thiab specifications:
Kev sim ua kom ua paraffin yog qhov ua kom zoo nkauj yog qhov ua kom huv, ua kom huv si ntawm cov khoom khov kho hydrocarbons tau txais los ntawm pupleum. Tsis zoo li kev ua lag luam paraffin waxes siv nyob rau hauv tswm ciab lossis txheej txheej ua kom zoo li cov roj av zoo li roj, thiab cov pa taws thiab hydrocarbons.
2.> Cov lus qhia tshwj xeeb muaj xws li:
- Purity High: Cov roj roj tsawg heev (feem ntau<0.5%).
- Tshwj xeeb melting point: ranges yog qhov tseem ceeb rau kev siv (feem ntau 56-58℃lossis 58-60 degree, xaiv raws li kev siv).
- Kev ua kom sib xws: homogeneous kev ntxhib los mos thiab xim (feem ntau yog xim dawb / tsis muaj xim).
- Inertness: chemically ruaj khov thiab tsis - reasive nrog cov tshuaj feem ntau.
- Cov qauv ua raws: Feem ntau ua raws li cov qauv zoo li ASTM D1218.
3.Key Prosis yam nta:
- Hydrophobicity: dej heev - tshuaj pleev.
- Tsawg tshuaj cuam tshuam: inert ntawm cov acids, alkalis, thiab ntau cov kuab tshuaj hauv chav sov.
- ThermoplasticS: melts thaum cua sov thiab ua tau zoo thaum txias tsis muaj tshuaj hloov.
- Insolubility: Insoluble hauv dej cawv thiab dej txias; Soluble hauv hydrocarbons, chlorinated kuab tshuaj, thiab cov roj kub kub.
- Crystalline qauv: Cov qauv kev xeeb ceem muaju thaum muaj kev sib tham.
- Tsawg ntom ntom: ntab rau dej.
- Translucency / opacity: Muaj peev xwm ntau ntawm translucent mus rau opaque nyob ntawm qib.
4.Primary Daim Ntawv Thov:
①hatology / pathology: siv. Molten pakaffin infiltrates thiab embeds cov tshuaj lom ntaub so ntswg, muab kev txhawb nqa cov txheej txheem rau ultra- recle seem (microTomy) rau kev kuaj me me.
②MICROTOMY: Blocks ntawm paraffin - aphed cov ntaub so ntswg yog ntu rau hauv cov kua me me ntawm cov swb.
Cov khoom lag luam: Cov Nkoj Sealed (piv txwv li, fwj, jars) los tiv thaiv kev ya raws lossis evaporation ntawm cov kuab tshuaj / reagents.
④Slide Sealing: khaws cia lub iav tsom iav swb kev npaj npaj rau hauv qab npog.
⑤Specimen txuag: txheej lossis embedding pitimens rau ntev - sij hawm cia.
⑥ Kuaj cov lus: kev tsim kom muaj kev thaiv dej noo, cov ntsaws ruaj ruaj, lossis cov pwm yooj yim.
5.critical cov lus ceeb toom:
-} kub kub hnyiab: thawj kev phom sij. Molten waX ua rau kev kub hnyiab. Yuav tsum siv PPE tsim nyog: tshav kub- illantant hnab looj tes, chav pw, thiab kev tiv thaiv lub qhov muag. Lis cov ntim nrog tus nplaig.
{{0- Flammability: Khoom siv quav ciab qeeb - hlawv, tab sis molten wax yog cov nplaim taws. Cia kom deb ntawm cov nplaim taws, cov txim taws, thiab muaj peev txheej kub. Yeej tsis kub dua ib qho chaw qhib; Siv lub ntsuas cua sov tswj cov da dej lossis qhov cub.
-Fumes: Overheating (>200 degree) tuaj yeem tsim cov pa taws lossis cov pa taws. Ua kom muaj qhov cua txaus; tsis txhob nqus pa.
{{0 {0- Slipping Discucts: spilled khoom wax tsim nplua qaum chaw. Huv huv spills kom sai.
{{0- kub kub: Cov thawv siv tam sim no Melted Wax tseem kub ntev tom qab nres.
6.Disposal raws tu qauv:
-} Solorify: Tso cai rau cov khoom siv OROVER
{{0-} Cov ntaub ntawv tsis huv (piv txwv li siv quav ciab), pov tseg {{{4 4 {}} cov tswv yim kev cai.Tsis txhob nchuav cov kua ciab rau hauv dej ntws.
{{0 {}}}}}} Cov khoom tsis huv nrog cov tshuaj lom neeg, tshuaj lom neeg, lossis tuag khib nyiab lossis tshuaj lom neeg. Collect in appropriate labeled containers (eg, biohazard bag inside rigid container for tissue-contaminated wax) and dispose of via institutional hazardous waste procedures. Sab laj koj chav haujlwm kev nyab xeeb kev nyab xeeb lossis cov khib nyiab tswj cov lus qhia.